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1.
The correct answer to the question "What's up?"

In 3-dimensional Cartesian terms, the x-axis is east and west, the y-axis is north and south, and the z-axis is up and down. So the positive z-axis is what's up.
Guy 1: "What's up, man?"
Guy 2: "The positive z-axis."
Guy 1: *rolls eyes*
by MarshoT November 30, 2009
6 2

Words related to The positive z-axis.:

axis joke math positive up